/usr/lib/ is in libreoffice-lightproof-ru-ru 0.3.4+1.6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/libreoffice/
/usr/lib/libreoffice/share/
/usr/lib/libreoffice/share/extensions/
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/Lightproof.py
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/Linguistic.xcu
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/META-INF/
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/META-INF/manifest.xml
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/README_lightproof_ru_RU.txt
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/description.xml
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/dialog/
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/dialog/OptionsDialog.xcs
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/dialog/OptionsDialog.xcu
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/dialog/ru_RU.xdl
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/dialog/ru_RU_en_US.default
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/dialog/ru_RU_en_US.properties
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/dialog/ru_RU_ru_RU.properties
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/pythonpath/
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/pythonpath/lightproof_handler_lightproof_ru_RU.py
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/pythonpath/lightproof_impl_lightproof_ru_RU.py
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/pythonpath/lightproof_lightproof_ru_RU.py
/usr/lib/libreoffice/share/extensions/lightproof_ru_RU/pythonpath/lightproof_opts_lightproof_ru_RU.py